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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                最近開發微信公眾號 需要判斷借口返回的數據是否json字符串。 本想用`json_decode`數據根據結果是否`false`來判斷是否成功,結果出現了期待意外的結果 ``` $data = 123; $data = "123"; $data = "abc"; $data = ["a"=>1]; var_dump(json_decode($data)); # 分別是 int(123); int(123); NULL; 告警: # json\_decode() expects parameter 1 to be string, array given ``` 猜測函數內部解碼第一步是將參數1進行強轉字符串 &nbsp; 目前是用如下方法判斷 ``` function isJson($string, &$decode_result=false){ $decode_result = json_decode($string); // $this->log($decode_result); return (json_last_error() == JSON_ERROR_NONE) && $decode_result && (is_object($decode_result) || is_array($decode_result)); } ```
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